gecko-dev/dom/presentation/interfaces/nsIPresentationDeviceManage...

50 строки
1.5 KiB
Plaintext

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
interface nsIArray;
interface nsIPresentationDeviceProvider;
%{C++
#define PRESENTATION_DEVICE_MANAGER_CONTRACTID "@mozilla.org/presentation-device/manager;1"
#define PRESENTATION_DEVICE_CHANGE_TOPIC "presentation-device-change"
%}
/*
* Manager for the device availability. User can observe "presentation-device-change"
* for any update of the available devices.
*/
[scriptable, uuid(beb61db5-3d5f-454f-a15a-dbfa0337c569)]
interface nsIPresentationDeviceManager : nsISupports
{
// true if there is any device available.
readonly attribute boolean deviceAvailable;
/*
* Register a device provider manually.
* @param provider The device provider to add.
*/
void addDeviceProvider(in nsIPresentationDeviceProvider provider);
/*
* Unregister a device provider manually.
* @param provider The device provider to remove.
*/
void removeDeviceProvider(in nsIPresentationDeviceProvider provider);
/*
* Force all registered device providers to update device information.
*/
void forceDiscovery();
/*
* Retrieve all available devices, return a list of nsIPresentationDevice.
* The returned list is a cached device list and could be out-of-date.
* Observe device change events to get following updates.
*/
nsIArray getAvailableDevices();
};